ATE159988T1 - METHOD FOR COMBINED COATING REMOVAL AND MELTING OF ALUMINUM SCRAP CONTAMINATED WITH ORGANIC SUBSTANCES - Google Patents

METHOD FOR COMBINED COATING REMOVAL AND MELTING OF ALUMINUM SCRAP CONTAMINATED WITH ORGANIC SUBSTANCES

Info

Publication number
ATE159988T1
ATE159988T1 AT95901299T AT95901299T ATE159988T1 AT E159988 T1 ATE159988 T1 AT E159988T1 AT 95901299 T AT95901299 T AT 95901299T AT 95901299 T AT95901299 T AT 95901299T AT E159988 T1 ATE159988 T1 AT E159988T1
Authority
AT
Austria
Prior art keywords
metal
melting
bed
fluidized
fluidized bed
Prior art date
Application number
AT95901299T
Other languages
German (de)
Inventor
Francois Tremblay
Gilles R Turcotte
Serge Lavoie
Ghyslain Dube
Sylvain P Tremblay
Jean-Yves Fortin
Original Assignee
Alcan Int Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcan Int Ltd filed Critical Alcan Int Ltd
Application granted granted Critical
Publication of ATE159988T1 publication Critical patent/ATE159988T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • C22B7/004—Dry processes separating two or more metals by melting out (liquation), i.e. heating above the temperature of the lower melting metal component(s); by fractional crystallisation (controlled freezing)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A method of recovering an aluminum-containing metal from a scrap material containing the metal and an organic contaminant, such as paper, plastics, lacquer, paint or oil. The method involves creating a fluidized bed of solid particles, maintaining a zone of the bed at a temperature in the range of the melting point of the metal to 1000 DEG C., introducing the scrap material into the fluidized zone to cause decoating of the metal within a time in the range of 1 to 40 seconds, at least partially melting the metal, and removing the metal material from the fluidized bed. In this way, decoating and at least partial melting is achieved essentially at the same time for improved efficiency. Metals of different melting point may also be separated from each other by providing a series of temperature zones in the fluidized bed (or in a series of fluidized beds) of progressively increasing temperature. If a limited amount of oxygen is introduced into the bed, a combustible gas is produced that can be burned to extract its energy or can be stored for later use.
AT95901299T 1993-12-01 1994-11-25 METHOD FOR COMBINED COATING REMOVAL AND MELTING OF ALUMINUM SCRAP CONTAMINATED WITH ORGANIC SUBSTANCES ATE159988T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/160,435 US5364443A (en) 1993-12-01 1993-12-01 Process for combined decoating and melting of aluminum scrap contaminated with organics

Publications (1)

Publication Number Publication Date
ATE159988T1 true ATE159988T1 (en) 1997-11-15

Family

ID=22576884

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95901299T ATE159988T1 (en) 1993-12-01 1994-11-25 METHOD FOR COMBINED COATING REMOVAL AND MELTING OF ALUMINUM SCRAP CONTAMINATED WITH ORGANIC SUBSTANCES

Country Status (7)

Country Link
US (1) US5364443A (en)
EP (1) EP0728221B1 (en)
AT (1) ATE159988T1 (en)
AU (1) AU1060695A (en)
DE (1) DE69406681T2 (en)
ES (1) ES2109083T3 (en)
WO (1) WO1995015404A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO119693B1 (en) * 1995-08-11 2005-02-28 Solvay Alkali Gmbh Process for the purification of gases discharged from furnaces
CN1045627C (en) * 1996-07-18 1999-10-13 财团法人工业技术研究院 Method for recovering aluminium foil from waste aluminium foil package and apparatus thereof
AT408684B (en) * 1997-12-11 2002-02-25 Holderbank Financ Glarus METHOD FOR PROCESSING REST-SHREDDER OR SHREDDER LIGHT FACTIONS
FI103582B (en) * 1997-12-19 1999-07-30 Valtion Teknillinen A method for treating a material comprising a metal and an organic material, including separation of the metal
FI981742A0 (en) * 1998-08-12 1998-08-12 Foster Wheeler Energia Oy Liquid packaging board waste material recycling process and device for recycling liquid packaging board waste material
GB2349891B (en) * 1999-05-10 2001-06-06 Alcan Int Ltd Recovery method
JP4191033B2 (en) * 2001-09-14 2008-12-03 コラス・アルミニウム・バルツプロドウクテ・ゲーエムベーハー Method for removing coatings on metal-coated scrap pieces
ES2201885B1 (en) * 2001-11-16 2005-06-01 Al Air Liquide España, S.A. PROCEDURE FOR THE FUSION OF AN ALUMINUM LOAD.
ES2326568B1 (en) * 2005-05-04 2010-07-15 Al Air Liquide España, S.A. PROCEDURE FOR THE FUSION OF A FERROUS LOAD AND CONTROL SYSTEM OF THE CONCENTRATION OF UNQUEMED IN A FUSION OVEN.
RU2324745C2 (en) * 2006-02-26 2008-05-20 Игорь Михайлович Дистергефт Method of thermal processing of metal in combustion furnace of either direct or indirect reheating (variants), method of burning of mixture of liquid or gazeous fuel and heated air in combustion furnace of either direct or indirect reheating, heating mechanism (variants) and regenerative capping (variants) to implement these procedures
GB2477753B (en) * 2010-02-11 2012-04-18 Rifat Al Chalabi Metal recovery process
GB2510642B (en) 2013-02-12 2016-02-03 Chinook End Stage Recycling Ltd Waste processing
JP2019526434A (en) * 2017-05-26 2019-09-19 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． System and method for briquetting cyclodust from a decoating system
CN111356778A (en) * 2017-11-20 2020-06-30 奥科宁克技术有限责任公司 Method for recovering machining waste
PT3932534T (en) * 2020-06-30 2023-03-10 Aura Tech Gmbh Method and device for recycling waste containing valuable metals

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA81175B (en) * 1980-01-23 1982-02-24 Alcan Res & Dev Recovery of coated aluminium scrap
US4468847A (en) * 1982-08-31 1984-09-04 Aluminum Company Of America Method of segregating metallic components
US4508564A (en) * 1984-05-17 1985-04-02 The William L. Bonnell Company Scrap metal reclaiming process
AT388176B (en) * 1987-07-30 1989-05-10 Voest Alpine Ag METHOD AND PLANT FOR THE PRODUCTION OF LIQUID RAW IRON OR STEEL PRE-PRODUCTS FROM LIQUID, IRON OXIDE-CONTAINING MATERIALS
US4993323A (en) * 1988-09-08 1991-02-19 Tabery Ronald S Fluidized bed combustion of aluminum smelting waste
DE69018874D1 (en) * 1989-05-29 1995-06-01 Alcan Int Ltd Process and plant for melting contaminated metallic waste.
CA2021638C (en) * 1990-07-20 1996-12-17 Francois Tremblay Decontamination and/or surface treatment of metals
GB9119543D0 (en) * 1991-09-13 1991-10-23 Stein Atkinson Strody Ltd Metal processing or recovery

Also Published As

Publication number Publication date
EP0728221A1 (en) 1996-08-28
ES2109083T3 (en) 1998-01-01
US5364443A (en) 1994-11-15
AU1060695A (en) 1995-06-19
DE69406681D1 (en) 1997-12-11
EP0728221B1 (en) 1997-11-05
DE69406681T2 (en) 1998-03-05
WO1995015404A1 (en) 1995-06-08

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